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Cu/TiO_(2) Photocatalysts for CO_(2) Reduction: Structure and Evolution of the Cocatalyst Active Form

Transactions of Tianjin University 2024年第2期30卷 140-151页

作者： Andrey A.Saraev Anna yu.Kurenkova Denis D.Mishchenko Alexandr L.Trigub evgeniy yu.gerasimov Ekaterina A.Kozlova Boreskov Institute of Catalysis Lavrentieva Ave 5Novosibirsk 630090Russia Synchrotron Radiation Facility SKIF Boreskov Institute of CatalysisNikol’skiy Ave 1Kol’tsovo 630559Russia National Research Center “Kurchatov Institute”Kurchatova Sq 1Moscow 123182Russia

Extensive work on a Cu-modified TiO_(2) photocatalyst for CO_(2) reduction under visible light irradiation was conducted. The structure of the copper cocatalyst was established using UV-vis diff use refl ectance spectroscopy, high-resolution transmis- sion electron microscopy, X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy. It was found that copper exists in different states (Cu 0 , Cu^(+) , and Cu^(2+) ), the content of which depends on the TiO_(2) calcination temperature and copper loading. The optimum composition of the cocatalyst has a photocatalyst based on TiO_(2) calcined at 700℃ and modified with 5 wt% copper, the activity of which is 22 μmol/(h·g cat ) (409 nm). Analysis of the photocatalysts after the photocatalytic reaction disclosed that the copper metal on the surface of the calcined TiO_(2) was gradually converted into Cu_(2) O during the photocatalytic reaction. Meanwhile, the metallic copper on the surface of the noncalcined TiO_(2) did not undergo any trans- formation during the reaction.

关键词： Photocatalysis Photocatalytic CO_(2)conversion Visible light Titanium dioxide Copper Copper oxides Methane formation Photocatalyst transformation

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Evolutionary history of mountain voles of the subgenus Aschizomys (Cricetidae, Rodentia), inferred from mitochondrial and nuclear markers

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Integrative Zoology 2020年第3期15卷 187-201页

作者： Semen yu.BODROV Vera K.VASILJEVA Innokentiy M.OKHLOPKOV Nikolai V.MAMAYEV evgeniy S.ZAKHAROV Alexey yu OLEINIKOV evgeniy A.GENELT-YANOVSKIY Natalia I.ABRAMSON Zoological Institute Russian Academy of SciencesSaint PetersburgRussia Institute for Biological Problems of Cryolithozone YakutskSakha Republic(Yakutia)Russia Institute of Water and Ecological Problems KhabarovskRussia Saint-Petersburg Scientific Center RAS Saint PetersburgRussia

In this study,we present an assessment of the evolutionary history and phylogenetic relationships of Asian mountain voles of the subgenus Aschizomys,genus Alticola,based on extensive sampling and phylogenetic analyses of data from mitochondrial and nuclear *** species of this subgenus are widespread in the mountain areas of north-eastern ***,both their distribution and taxonomic borders remained questionable for more than 100 *** study showed discordance in the phylogenetic patterns between nuclear and mtDNA *** found that mtDNA in *** is paraphyletic relative to ***,but nuclear markers demonstrated reciprocal *** to species distribution modeling,ranges of *** and *** experienced a secondary contact during the Last Glacial Maximum(approximately 22 kyr BP),and thus a hybridization event seems plausible during that *** tree analyses recovered a sister group relationship between the two species of the Aschizomys subgenus,with an estimated divergence date of around 0.8 *** results provided good support for currently recognized subspecies within both *** and *** based on mitochondrial and nuclear datasets.A new,yet undescribed form,supposedly of a subspecific status within ***,was found in the Bureinskiy Range in the Khabarovsk *** finding expands the current species distribution range further to the southeast.

关键词： Asian mountain voles Aschizomys phylogeny taxonomy species tree species distribution modeling

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Reactive SPS of Al_(2)O_(3)–RE:YAG(RE=Ce;Ce+Gd)composite ceramic phosphors

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Journal of Advanced Ceramics 2023年第5期12卷 1015-1032页

作者： Denis yu.Kosyanov Anastasia A.Vornovskikh Oleg O.Shichalin evgeniy K.Papynov Anton A.Belov Aleksandra A.Kosianova Aleksandr N.Fedorets Andrei A.Leonov Alexey P.Zavjalov Sergey A.Tikhonov Yanbin Wang Ziqiu Cheng Xin Liu Jiang Li Far Eastern Federal University Vladivostok 690922Russia Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of SciencesVladivostok 690041Russia Laboratory of Methods of Synchrotron Radiation Institute of Solid State Chemistry and MechanochemistrySiberian Branch of the Russian Academy of SciencesNovosibirsk 630128Russia Kamchatka Branch of Geophysical Survey of the Russian Academy of Sciences Petropavlovsk-Kamchatsky 683006Russia Key Laboratory of Transparent Opto-functional Inorganic Materials Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Ultrafine-grained Al_(2)O_(3)–rare earth:yttrium aluminium garnet(Al_(2)O_(3)–RE:YAG)(RE=Ce;Ce+Gd)composite ceramics were obtained for the first time by reactive spark plasma sintering(SPS)using commercially available initial oxide *** effect of key sintering parameters(temperature,dwell time,and external pressure(P_(load)))on densification peculiarities,structural-phase states,and luminescent properties of composites was studied *** in phase formation and densification between Ce-doped and Ce,Gd-codoped systems were *** of reactive SPS,at which there is partial melting with the formation of near-eutectic zones of the Al_(2)O_(3)–YAG system/coexistence of several variations of the YAG-type phase,were *** corundum–garnet biphasic ceramics with an optimal balance between microstructural and luminescence performance were synthesized at 1425℃/30 min/30–60 *** external quantum efficiency(EQE)of the phosphor converters reached 80.7%and 72%with close lifetime of~63.8 ns,similar to those of commercial Ce:YAG materials,which is promising for further applications in the field of high-power white light-emitting diodes(WLEDs)and laser diodes(LDs).

关键词： alumina–Ce^(3+)-doped yttrium aluminium garnet(Al_(2)O_(3)–Ce:YAG)ceramic phosphors reactive spark plasma sintering(SPS) structural-phase states microstructure luminescence performance

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Genes associated with testicular germ cell tumors and testicular dysgenesis in patients with testicular microlithiasis

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Asian Journal of Andrology 2018年第6期20卷 593-599页

作者： Ilya S Dantsev evgeniy V Ivkin Aleksey A Tryakin Dmitriy N Godlevski Oleg yu Latyshev Victoriya V Rudenko Dmitry S Mikhaylenko Vyacheslav B Chernykh Elena A Volodko Aleksey B Okulov Oleg B Loran Marina V Nemtsova Russian Medical Academy ef Postgraduate Education Moscow 123995Russia N.N.Blokhin Russian Cancer Research Center Moscow 115478Russia Research Centre of Medical Genetics Moscow 115478Russia M.Sechenov First Moscow State Medical University Moscow 119991Russia N.I.Pirogov Russian National Research Medical University Moscow 117997Russia.

Testicular microlithiasis （TM） is one of the symptoms of testicular dysgenesis syndrome （TDS）. TM is particularly interesting as an informative marker of testicular germ cell tumors （TGCTs）. KIT ligand gene （KITLG）, BCL2 antagonist/killer 1 （BAK1）, and sprouty RTK signaling antagonist 4 （SPRY4） genes are associated with a high risk of TGCTs, whereas bone morphogenetic protein 7 gene （BMP7）, transforming growth factor beta receptor 3 gene （TGFBR3）, and homeobox D cluster genes （HOXD） are related to TDS. Using polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） analysis, we investigated allele and genotype frequencies for KITLG （rs995030, rs1508595）, SPRY4 （rs4624820, rs6897876）, BAK1 （rs210138）, BMP7 （rs388286）, TGFBR3 （rs12082710）, and HOXD （rs17198432） in 142 TGCT patients, 137 TM patients, and 153 fertile men （control group）. We found significant differences in the KITLG GG_rs995030 genotype in TM （P= 0.01） and TGCT patients （P = 0.0005） compared with the control. We also revealed strong associations between KITLGrs1508595 and TM （G allele, P = 0.003; GG genotype, P= 0.01） and between KITLG_rs1508595 and TGCTs （G allele, P-- 0.0001; GG genotype, P = 0.0007）. Moreover, there was a significant difference in BMP7_rs388286 between the TGCT group and the control （T allele, P = 0.00004; TT genotype, P = 0.00006） and between the TM group and the control （T allele, P= 0.04）. HOXDalso demonstrated a strong association with TGCTs （rs17198432 A allele, P = 0.0001; AA genotype, P = 0.001）. Furthermore, significant differences were found between the TGCT group and the control in the BAK1_rs210138 G allele （P= 0.03） and the GG genotype （P= 0.01）. KITLG and BMP7genes, associated with the development of TGCTs, may also be related to TM. In summary, the KITLG GG_rs995030, GG_rs1508595, BMP7 TT_rs388286, HOXD AA_rs17198432, and BAK1 GG_rs210138 genotypes were associated with a high risk of TGCT development.

关键词： associations genotype high risk testicular dysgenesis syndrome testicular microlithiasis

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Prospects of Using Low-temperature Adsorption for Neon Separation into Isotopes

Prospects of Using Low-temperature Adsorption for Neon Separ...

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2008国际低温与制冷大会

作者： Vitaliy L Bondarenko evgeniy yu Povolotskiy Alexandr N Kislyy Andrey V Livinskiy Bauman Moscow State Technical University

＜正＞The results of research on neon separation into isotopes at the temperatures of 77—65K are *** scheme and description of laboratory installation for producing neon isotopes are *** parameters required for carrying out the separation process are *** possibility of forming the liquid neon phase in micropores of sorbent within the temperature range of 77—55K and its influence on the separation process are demonstrated by the method of frontal chromatographic experiment.

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Efficacy of the new therapeutic approach in curing malignant neoplasms on the model of human glioblastoma

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Cancer Biology & Medicine 2021年第3期18卷 910-930页

作者： evgeniya V.Dolgova Oleg M.Andrushkevich Polina E.Kisaretova Anastasia S.Proskurina Genrikh S.Ritter Tatyana D.Dubatolova Margarita V.Romanenko Oleg S.Taranov Yaroslav R.Efremov evgeniy L.Zavyalov Alexandr V.Romaschenko Sergey V.Mishinov Svetlana S.Kirikovich evgeniy V.Levites Ekaterina A.Potter Alexandr A.Ostanin Elena R.Chernykh Stanislav yu.Roshchin Anatoliy V.Bervitskiy Galina I.Moysak Jamil A.Rzaev Sergey S.Bogachev Institute of Cytology and Genetics SB RAS Novosibirsk 630090Russia A.I.Evdokimov Moscow State University of Medicine and Dentistry Moscow 127473Russia Institute of Molecular and Cellular Biology Novosibirsk 630090Russia Novosibirsk State University Novosibirsk 630090Russia The State Research Center of Virology and Biotechnology"Vector" KoltsovoNovosibirsk 630559Russia First Department of Neurosurgery Ya.L.Tsivian Novosibirsk Research Institute of Traumatology and OrthopaedicsNovosibirsk 630091Russia Institute of Fundamental and Clinical immunology Novosibirsk 630099Russia Sklifosovsky Research Institute of Emergency Medicine Moscow 129010Russia Federal Center of Neurosurgery Novosibirsk 630048Russia

Objective:Glioma is a highly invasive tumor,frequently disposed in essential areas of the brain,which makes its surgical excision extremely difficult;meanwhile adjuvant therapy remains quite ***:In the current report,a new therapeutic approach in curing malignant neoplasms has been performed on the U87 human glioblastoma *** approach,termed"Karanahan",is aimed at the eradication of cancer stem cells(CSCs),which were recently shown to be capable of internalizing fragments of extracellular double-stranded *** being internalized,these fragments interfere in the process of repairing interstrand cross-links caused by exposure to appropriate cytostatics,and such an interference results either in elimination of CSCs or in the loss of their tumorigenic *** of the approach requires a scheduled administration of cytostatic and complex composite double-stranded DNA ***:U87 cells treated in vitro in accordance with the Karanahan approach completely lost their tumorigenicity and produced no grafts upon intracerebral transplantation into immunodeficient *** SCID mice with developed subcutaneous grafts,the treatment resulted in reliable slowing down of tumor growth rate(P<0.05).In the experiment with intracerebral transplantation of U87 cells followed by surgical excision of the developed graft and subsequent therapeutic treatment,the Karanahan approach was shown to reliably slow down the tumor growth rate and increase the median survival of the mice twofold relative to the ***:The effectiveness of the Karanahan approach has been demonstrated both in vitro and in vivo in treating developed subcutaneous grafts as well as orthotopic grafts after surgical excision of the tumor.

关键词： Glioblastoma U87 cell line mytomycin C cancer stem cells TAMRA

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